What is sfpmonitor.sys?

sfpmonitor.sys is part of SonicWall File Process Monitor Driver and developed by SonicWall Inc. according to the sfpmonitor.sys version information.

sfpmonitor.sys's description is "SFPMonitor Filter Driver"

sfpmonitor.sys is digitally signed by SonicWall Inc..

sfpmonitor.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about sfpmonitor.sys.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

VirusTotal report

None of the 67 anti-virus programs at VirusTotal detected the sfpmonitor.sys file.

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

ERROR: Failed to execute process.

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1566571986.3438,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "C:\\Sonicwall\\Unity\\EnforcementService\\Products\\SWClientProtection\\Windows\\SFPMonitorDriver\\x64\\Win7Release\\sfpmonitor.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 3,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".gfids",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "PAGE",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "INIT",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1098,
            "time": 4.1611211299896,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1426,
            "time": 4.6644170284271,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1754,
            "time": 3.0578980445862,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 2082,
            "time": 4.680251121521,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 4294,
            "time": 4.181431055069,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "cfba923bffed84b30e98701d58bc386383f9b85021cdd077d1961158b4dd0d2e",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "da9ad313c37e8bb3a6dd92c3c3c8c0eec37d2e17ce9634fefba7758284ef3b5c",
    "irc": [],
    "https_ex": []
}

Screenshots

What did other users do?

The poll result listed below shows what users chose to do with sfpmonitor.sys. 88% have voted for removal. Based on votes from 8 users.

NOTE: Please do not use this poll as the only source of input to determine what you will do with sfpmonitor.sys. Only 8 users has voted so far so it does not offer a high degree of confidence.

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

And now some shameless self promotion ;)

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